Irrigation valve



IRRIGATION VALVE Filed May 16, 1951 INVEII'I'OR n w. m w w m. a w 5ATTORNEYS Patented Nov. 11, 1952 IRRIGATION VALVE Gilbert D. Williamson,Yuba City, Calif., assignor to Valley Concrete Pipe & Products Company,Inc., Yuba City, Calif., a corporation of California Application May 16,1951, Serial No. 226,569

2 Claims.

1 This invention relates to an irrigation valve of thetype adapted to besecured on the upper end of a water supply stand pipe; the latterextending to adjacent the surface of the ground from an underground ipesystem.

A major object of the present invention is to An additional object ofthe invention is to provide a novel mounting arrangement for the crossbar, and through which cross bar the vertical lid adjusting screw isthreaded; such mounting arrangement being designed to prevent breakageof the concrete, seat forming ring upon elongation of said cross barresulting from tension of the adjusting screw.

It is also an object of the invention to provide an irrigation valvewhich has the further advantages of ease of adjustment; leakproof whenclosed; and a design to prevent puddling-which health regulationsforbid-on top from rain-' water or irrigation water splashing thereon.

Still another object of the invention is to provide a practical andreliable irrigation valve, and

yet one which will be exceedingly effective for the purpose for which itis designed.

Q'Ihese objects are accomplished by means of such structure and relativearrangement of parts aswill fully appear by a perusal of the followingspecification and claims.

;In the drawings:

Fig. 1 is a sectional elevation of the improved irrigation valve inclosed position.

2 is a plan view of the same partly broken away.

Fig. 3 is a fragmentary inside elevation of the seat forming ring,showing one of the notches adapted for reception of the correspondingsupporting pad of the cross bar.

Referring now more particularly to the characters of reference on thedrawings, the valve comprises a concrete, seat forming ring I adapted toengage in matching relation on the upper end of a concrete stand pipe 2;such ring including a depending annular locating and retention skirt 3which surrounds the upper end portion of the stand pipe 2'. There is alayer of mortar 4 between the bottom of the ring I and the upper end ofthe stand pipe 2, while another layer of mortar 5 exists between theannular skirt 3 and the adjacent side portion of said stand pipe 2.

A cross bar 6 spans diametrally between opposite sides of the stand pipe2 at its upper end, and such cross bar is formed, at the ends, withhorizontal, supporting pads l which engage in receiving notches 8 in thering I; such notches being open to the bottom and to the inside of suchring. The pads 1 are of lesser radial extent than the depth of thereceiving notches 8, and compression blocks 9-preferably of rubber orneopreneare engaged in close fitting relation between the free ends ofthe pads I and the back ends of said notches.

The purpose of the compression blocks 9 will hereinafter appear.

The cross bar 6 is formed with a central hub I0 having a vertical borethreaded for the reception of a screw II formed on the lower portion ofa vertical shaft I2 which projects above such cross bar. The cross bar 6and the shaft I2, including the threadingly engaged portions thereof,are cast metal, whereby to avoid machining.

Above the screw II the shaft I2 projects in turnable relation through avertical, central bore I3 in a circular lid I4 formed of concrete. Suchcircular lid I4 is supported from below by a washer I5 on shaft I2,which washer seats on a cross pin I5 extending through such shaft. Theprojecting end portions of the cross pin I6 are bent slightly to preventsuch pin from escaping.

Another washer I'I surrounds the shaft I2 between the top of the lid I4and an enlarged annular stop shoulder I8 integral with the shaft. Abovethe stop shoulder I8 the shaft is formed with a square head [9 throughwhich a doubleencled transverse handle 20 projects for manipulation ofthe valve.

With the above described arrangement the shaft I2 is readily actuated toadjust the circular lid up or down. When the lid I4 is in closedposition an annular, resilient gasket 2I seals such lid with the rin I,whereby to prevent water flow; the resilient gasket 2| being circular incross section, and is securedby cementingin a semi-circular channel 22'formed in the under side of said lid I4.

The top 23 of the circular lid I4 slopes downwardly and outwardly fromthe center, whereby any water which falls on said lid from rain or fromsplashing cannot form a puddle wherein mosquitos could otherwise breed.

Under certain positions of adjustment, as when the lid [4 is fullyclosed and the screw I I is under considerable tension, some elongationof the cross bar 6 occurs. fracturing the concrete ring I or the annulardepending skirt 3, the compression blocks 9 are employed. Any elongationr extension of the cross bar 6 is absorbed by the compression blocks 9,Without damage to the ring I or skirt 3.

The described irrigation valve is not only designed for ease and economyof manufacture and installation, but when in use provides a verypractical and sturdy structure.

From the foregoing description it will be readily seen that there hasbeen produced such a device as substantially fulfills the objects of theinvention, as set forth herein.

While this specification sets forth in detail the present and preferredconstruction of the device, still in practice such deviations from suchdetail may be resorted to as do not form a departure from the spirit ofthe invention, as defined by the appended claims.

Having thus described the invention, the following is claimed as new anduseful, and upon which Letters Patent are desired:

1. An irrigation valve for mounting on a stand pipe comprising a crossbar adapted to rest on top of the stand pipe, a screw threaded throughthe cross bar, a valve lid mounted on the screw above the cross bar, anda member adapted to be mounted on the stand pipe to hold the cross baragainst upward movement and rotation, and also forming a seat for thelid; said member comprising a top ring to rest on top of the stand pipeTo prevent such elongation from r and having notches open to the bottomand into which the outer ends of the arms project, and a skirt formedWith the ring and depending about the stand pipe in substantiallyfitting relation.

2. An irrigation valve for mounting on a stand pipe comprising a crossbar adapted to rest on top .of the stand pipe, a screw threaded throughthe cross bar, a valve "lid mounted on the screw above the cross bar,and a member adapted to be mounted on the stand pipe to hold the crossbar against upward movement and rotation, and also formin a seat for thelid, said member including a top ring adapted to rest on and be securedto the top of the stand pipe and having notches open to the bottom andinto which the outer ends of the arms project, the arms terminatingshort of the bottom of the notches, and resilient compression blocks inthe notches filling the spaces be tween the ends of the arms and thebottom of the notches.

V GILBERT D; WILLIAMSON.

REFERENCES CITED The following references are of record in the

